[Webit-discuss] WebIt! CSS2.1 compatibility

[Julian G. <jo...@gm...>]

Hi Jim et al,
  I work on a CSS2.1 parsing and query system for Scheme called SCSS
(http://www.nongnu.org/scss/) that, like WebIt!, features integration
with SXML.  The existence of WebIt! was recently brought to my
attention, and I particularly liked the stylesheet representation you
guys use -- so much so that I'm planning to make SCSS use it in the
next release.  The only problem is that WebIt!'s representation only
covers CSS1 selector syntax, which means that I need to come up with a
way to handle the stuff introduced in 2.1, specifically attribute
selectors and the contextual selector modifiers + and >.
  I don't know if you're planning to support CSS2.1 in the future, but
I thought we could discuss some possible additions to your format.
For + and >, I think it's probably sufficient to prepend the symbols
in a contextual selector list with + or > respectively, as needed --
e.g.,

  (// foo bar +baz)

or

  (// foo >bar baz)

For attribute selectors, I propose two forms.  A verbose form, something like:

  (attrib <match-type> <name> <value>)
  (attrib <type> <match-type> <name> <value>)

e.g.,

  (attrib = foo bar)
  (attrib (id elem z98y) = foo bar)

...as well as shorter form, like

  elem[foo|=val]


Thoughts?


Regards,
Julian